Abstract: A connector includes an insulating seat defining a receiving cavity opening forwards, an optical module movably received in the receiving cavity and an actuating device. The optical module defines lenses at a front mating face thereof and a first touch portion at a rear face thereof. The actuating device is located behind the rear face of the optical module to urge the optical module moving forwards. The actuating device includes a spring coil and a connecting member defining a second touch portion which is urged by the spring coil to contact with the first touch portion. One of the first touch portion and the second touch portion provides a vertex and the other provides a planar so as to arrive a vertex-to-planar contact relationship between the first touch portion and the second touch portion.

Abstract: A rotary locking apparatus for locking and unlocking a fiber optic equipment tray and related methods are disclosed. The rotary locking apparatus may be a torsional rotary locking apparatus. The torsional rotary locking apparatus includes a rod having at least one protrusion and a torsion spring attached to the rod. The torsion spring may also be attached to a tray mount on the fiber optic equipment tray. The rod can be rotatably actuated such that the at least one protrusion selectively engages or disengages one or more of a plurality of slots in a tray guide to allow the fiber optic equipment tray to move from a closed to an open position. The torsion spring may be configured to lock the fiber optic equipment tray in either the open or the closed position when the at least one protrusion engages one of the plurality of slots in the tray guide.

Abstract: Provided is a method of manufacturing a liquid discharge head including: forming a first pattern for forming the flow path on the substrate; forming a first coating layer which covers the first pattern; forming a hole in the first coating layer, through which the first pattern is exposed; forming a second pattern for forming the flow path on the first coating layer, such that the second pattern contacts with the first pattern through the hole; forming a second coating layer for covering the second pattern; forming the discharge port in the second coating layer; and removing the first pattern and the second pattern to form the flow path.

Abstract: A waveguide system includes a first waveguide having surface roughness along at least one surface and a second waveguide substantially identical to the first waveguide and having substantially identical surface roughness along a corresponding side. The first and second waveguides are separated from each other by a predetermined distance and are configured to receive respective first and second light signals having antisymmetric modes. The predetermined distance between the first and second waveguide tends to cause cancellation of at least far-field polarization radiation emanating from the first and second waveguides and resulting from the surface roughness.

Abstract: A fiber optic cable includes a core and a binder film surrounding the core. The core includes a central strength member and core elements, such as buffer tubes containing optical fibers, where the core elements are stranded around the central strength member in a pattern of stranding including reversals in lay direction of the core elements. The binder film is in radial tension around the core such that the binder film opposes outwardly transverse deflection of the core elements. Further, the binder film loads the core elements normally to the central strength member such that contact between the core elements and central strength member provides coupling therebetween, limiting axial migration of the core elements relative to the central strength member.

Abstract: A first link and a second link are articulated relative to each other via a joint coupled between the first and second links. A shape-sensing optical fiber is used to sense a position of the first link and the second link relative to each other. The fiber passes through a channel having an opening defining a lip and extending from the first link toward the joint. The lip has a curved surface that begins substantially tangent to a wall of the channel, and during bending of the optical fiber, the optical fiber is positioned tangent to the curved surface of the lip.

Abstract: Fiber optic assemblies including a plurality of optical fibers in a connector having a ferrule are disclosed. The ferrule has a front end face and a plurality of bores with the plurality of optical fibers being disposed within one of the respective plurality of bores. The fiber optic assemblies have the plurality of optical fibers recessed from the front end face of the ferrule by a suitable distance to inhibit physical contact of the plurality of optical fibers when mated with a complementary connection. Consequently, the fiber optic assemblies are suited for hundreds or thousands of connections and disconnections (i.e., mating cycles) with reduced susceptibility from damage and/or optical attenuation caused by dirt, debris and the like as expected with the consumer electronic/device environments.

Abstract: The invention provides an optical waveguide including a resin substrate containing an inorganic filler, and at least a UV-absorbing layer, a lower cladding layer, a patterned core layer, and an upper cladding layer laminated above the resin substrate in this order, wherein the core layer has been patterned through light exposure and development, and the UV-absorbing layer has a thickness of 10 to 50 ?m, and a method for producing an optical waveguide, including a step of forming a UV-absorbing layer on a resin substrate containing an inorganic filler; a step of forming a lower cladding layer on the UV-absorbing layer; a step of forming a core layer on the lower cladding layer; a step of subjecting the core layer to light exposure to thereby transfer a pattern having a given shape to the core layer; a step of developing the core layer to thereby form a core pattern; and a step of forming an upper cladding layer on the patterned core layer.

Abstract: In an integrated circuit device, such as a microprocessor, a device internal optical communication system is provided in order to enhance signal transfer capabilities while relaxing overall thermal conditions. Furthermore, the device internal optical data or signal transfer capabilities may result in superior operating speed and a high degree of design flexibility. The optical communication system may be applied as a chip internal system in single chip systems or as an inter-chip optical system in three-dimensional chip configurations provided in a single package.

Abstract: The present disclosure includes apparatus, system, and method embodiments that provide micro electro mechanical system optical switching and methods of manufacturing switches. For example, one optical switch embodiment includes at least one micro electro mechanical system type pivot mirror structure disposed along a path of an optical signal, the structure having a mirror and an actuator, and the mirror having a pivot axis along a first edge and having a second edge rotatable with respect to the pivot axis, the mirror being capable of and arranged to be actuated to pivot between a position parallel to a plane of an optical signal and a position substantially normal to the plane of the optical signal.

Abstract: A photoelectric conversion module includes: an IC chip and a photoelectric conversion element mounted on one surface of a circuit board having a light transmitting property and flexibility; an optical fiber having a tip portion disposed in a holding groove formed in a resin layer provided on another surface of the circuit board; a reinforcing member covering the holding groove; and an optical element optically coupling a tip of the optical fiber and the photoelectric conversion element via the circuit board. The holding groove has an open end at an end of the resin layer, the end of the resin layer being located on the IC chip side in terms of an arrangement direction of the IC chip and the photoelectric conversion element, and at least part of the tip portion of the optical fiber extends along the IC chip.

Abstract: There is disclosed a probe (50) for directing light to an object to be measured and receiving light returned from the object to be measured, the probe including: an optical path (21) for transmitting light from a light source (10); a mirror member (52) for reflecting the light transmitted through the optical path (21); and a rotational oscillation mechanism (56) for rotatably oscillating the mirror member (52) and a tip end portion of the optical path (21) about a longitudinal axis of the optical path (21); wherein the rotational oscillation mechanism (56) is adapted to perform the rotational oscillation within a range defined by a torsional elasticity limit of the optical path (21). This configuration can provide an optical rotary probe with a simple structure and with high reliability, which is capable of suppressing optical losses and reflection ghosts.

Abstract: An optical cable including connectors includes a plurality of waveguide layers each including a plurality of optical channels each having a first end and a second end. First and second connectors each include a plurality of electrically conductive pins, and each of the plurality of optical channels of each of the waveguides, at their first and second ends, are connected to a specified pin on each of the first and second connectors, respectively. A first optical channel connection pattern on the first connector, and a second optical channel connection pattern on the second connector. The first optical channel connection pattern on the first connector is a different pattern than the second optical channel connection pattern on the second connector in relation to a connection hole pattern which is the same for both the first and second connectors.

Abstract: A fiber optic connector arrangement includes a printed circuit board coupled to a connector housing. The printed circuit board includes a memory storage device that is configured to store physical layer information pertaining to the fiber optic connector arrangement. The printed circuit board also defines contacts that are electrically coupled to the memory storage device to enable the physical layer information to be read from the memory storage device by a media reading interface. A connector assembly includes at least one adapter assembly; a printed circuit board; and a media reading interface. The connector assembly also may include a tactile pressure sensor. The adapter assembly defines at least a first port and a second port that are configured to connect optical fibers of two connector arrangements. One or more connector assemblies can be mounted to a fiber panel system.

Abstract: In an optical waveguide device of the present invention, optical element mount (17) includes first base block (19a) for supporting first optical element (18a) and second base block (19b) for supporting second optical element (18b) that has an active layer depth smaller than that of first optical element (18a). Second base block (19b) is formed from stacks of upper clad layers whose number of stacks is larger than that of first base block (19a). Difference (h1) in height between the first and second base blocks is equal to difference (d1?d2) in active layer depth between the first and second optical elements.

Abstract: An optical amplifier includes a passive waveguide region and an active waveguide region. The passive waveguide region is configured to receive an incident optical signal and adjust a mode of the optical signal. The active waveguide region is integrated to the passive waveguide region and configured to perform gain modulation on the optical signal received from the passive waveguide region by changing density of carriers in response to a current applied to the active waveguide region. Internal loss of the active waveguide region is adjusted to produce a resonance effect and thereby to increase bandwidth of the active waveguide. Therefore, the optical amplifier can have a wide bandwidth under a low-current condition.

Abstract: An optical cable comprises a tight-buffered optical cable and a protective sleeve which surrounds the tight-buffered optical cable. An intermediate layer surrounds the protective sleeve has tension-resistant elements. Furthermore, the optical cable contains a cable sheath which surrounds the intermediate layer, and a transitional area facing its inner surface. In this transitional area, the material of the cable sheath is mixed with the tension-resistant elements of the intermediate layer.

Abstract: A projected artificial magnetic mirror (PAMM) waveguide includes a substrate, metal patches, a metal backing, multiple dielectric materials, and a waveguide area. The metal patches are on a first layer of a substrate and the metal backing is on a second layer of the substrate. The first dielectric material is between the first and second layers of the substrate. The metal patches are electrically coupled to the metal backing to form an inductive-capacitive network that substantially reduces surface waves along a surface of the substrate within a given frequency band. The second dielectric material juxtaposed to the metal patches, where the waveguide area is between the second and third dielectric materials and includes the surface of the substrate. The inductive-capacitive network, the second dielectric material, and/or the third dielectric material facilitate confining an electromagnetic signal within the waveguide area.

Abstract: A technique for installing a fiber optic network includes preparing a physical site to install a feeder cable and a plurality of access stub lines along a plurality of customer premises that potentially may connect to the feeder cable to obtain communication services. Each of the access stub lines extends from the feeder cable towards a customer premise and each ends at a different initial termination point. There is a one-to-one correspondence between the customer premises and the access stub lines extending from the feeder cable. A demarcation device is attached to an end of each of the access stub lines at each of the initial termination points. The demarcation device includes an optical reflector that is reflective to an optical test signal for testing integrity of the feeder cable and an associated one of the access stub lines.

Abstract: A graded index multimode optical fiber comprising: (a) a silica core doped with germania, and at least one co-dopant, comprising one of P2O5 or F or B2O3, the core extending to outermost core radius, r1 and having a dual alpha, ?1; (b) a low index inner cladding surrounding the core and off-set from said core; (c) an outer cladding surrounding and in contact with the inner cladding, such that at least the region of the inner cladding off-set from said core has a lower refractive index than the outer cladding. The center germania concentration at the centerline, CGe1, is greater than or equal to 0, and an outermost germania concentration in the core CGe2, at r1 is greater than or equal to 0. The core has a center co-dopant concentration at the centerline, Cc-d1, greater than or equal to 0, and an outermost co-dopant concentration Cc-d2, at r1, wherein Cc-d2 is greater than or equal to 0.